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John Carmack's Unusual Fast Inverse Square Root (Quake III)
...t, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
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What do the terms “CPU bound” and “I/O bound” mean?
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edited Dec 3 '18 at 13:09
rlandster
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How to add Active Directory user group as login in SQL Server
...marc_s
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Ignore files that have already been committed to a Git repository [duplicate]
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edited Jul 16 '18 at 23:48
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How to make a countdown timer in Android?
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Multiple line code example in Javadoc comment
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David Tonhofer
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answered Feb 12 '09 at 16:26
Fabian SteegFabian St...
How to check if a file is empty in Bash?
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answered Apr 1 '12 at 13:52
thbthb
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How to rename files and folder in Amazon S3?
Is there any function to rename files and folders in Amazon S3? Any related suggestions are also welcome.
19 Answers
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How do I tell git-svn about a remote branch created after I fetched the repo?
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answered Sep 16 '09 at 3:23
vjangusvjangus
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Open terminal here in Mac OS finder [closed]
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edited Jun 16 '15 at 18:43
pkamb
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